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William Arthur Henley
William Biddle
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Molds, Cores, And Manufacturing Methods Thereof
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Abstract
25,544. Henley, W. A., and Biddle, W. Nov. 13. Moulding.-Metal cores of any section are divided longitudinally, and the meeting faces are grooved to connect the parts together, as shown for example in Fig. 3. Conical vent holes N, Fig. 6, may be provided.
GB190625544D1906-11-131906-11-13Substitute Cores for Sand Cores for Metal and Metal Alloys Castings
ExpiredGB190625544A
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